v70xc Turbo Replacement Question

[tryingbe]

- larger turbine wheel

Nope.

TD04-HL turbos (13G, 13T, 15G, 16T, 18T, 19T, etc) have all the same turbine wheel.

All four type of turbine housings (conical/flat/small port angle/large port angle) are interchangeable between all TD04-HL turbos.

Center section are all the same, early ones have coolant ports on both side, later ones have coolant ports on the same side ports for coolant. Holes are all there, they just need to be tapped if you want to use different coolant port.

Yes, rspi is right, you can swap between turbo physically and most people with their stock cars will probably never notice.

To OP, you can use TD04-HL 13G, 13T, or even a commonly found 15G from a 850. Just keep using your turbine housing. Running at stock boost, I highly doubt you'll notice any difference.

Now, to show I know what I'm talking about...

Conical, flat, small port angle, large port angle.


Rebuilt 16T


19Ts made from 15Gs, along with upgraded Garrett actuator.



I used to sell quite a few TD04-HL turbo and parts. Though, I no longer do.

[erikv11]

- larger turbine wheel

Nope.

TD04-HL turbos (13G, 13T, 15G, 16T, 18T, 19T, etc) have all the same turbine wheel.

... .

So is the information here http://stealth316.com/2-turboguide.htm, wrong, or am I reading it wrong? Please enlighten!

Of course the housings are interchangeable, of course you can swap the turbos, of course upgrading a 13g to a 13t will have no ill effects, these are very well known and standard procedures.

[tryingbe]

- larger turbine wheel

Nope.

TD04-HL turbos (13G, 13T, 15G, 16T, 18T, 19T, etc) have all the same turbine wheel.

... .

So is the information here http://stealth316.com/2-turboguide.htm, wrong, or am I reading it wrong? Please enlighten!

Of course the housings are interchangeable, of course you can swap the turbos, of course upgrading a 13g to a 13t will have no ill effects, these are very well known and standard procedures.

You're reading it wrong. TD04 series turbo are different than TD04H turbos or TD04L or TD04HL.

Early FWD Volvo uses TD04HL series (13G, 13T, 15G, 16T, 18T, 19T, etc), so none of TD04, TD04L, TD04H info apply here.

[erikv11]

So they all use the same TD04HL turbine wheel (1.80 exducer diameter, 2.05 inducer diameter), that is why they are called TD04HL series? Makes sense, thanks.

I am also looking at compressor wheel trim numbers on that page, do you know much about this? The 13t compressor wheel is larger than the 13g one, do the trim numbers indicate it spools up faster, and do they say anything about how much flow those two turbos produce? Obviously the even larger wheels on the 15g and 16t, 19t etc spool slower and produce more flow, but the trim numbers for 13g and 13t do not fit that general trend:

compressor
wheel inducer exducer trim
13G 1.580 2.000 62
13T 1.597 2.203 53
15G 1.625 2.187 55
16T 1.713 2.205 60
19T 1.809 2.283 63

[tryingbe]

Trim number is calculated by (inducer x inducer) / (exducer x exducer)

Trim number does not indicate spool up nor flow.

The number you have is wrong. I know for a fact that 13G, 13T, 15G, and 16T share the same 56mm exducer while 19T uses a bigger 58mm. I had the 13G/13T/15G/16T center section machined for bigger 19T wheels.

This is as close as I can get to an actual turbo parts list.
Page 27 list the wheel specs.
https://www.google.com/url?sa=t&rct=j&q ... Gc&cad=rja




There are many factors that affect the spool up speed of the turbo, other than just the size of the turbo. Engine size, cylinder head flow, type of boost control, rod/bore ratio, cam shaft, compression ratio, etc.

My T04E 50 trim turbo had a 53.89mm inducer and 76.2 mm exducer, I had no problem getting spool at 1400 rpm and full 12psi at 2600 rpm on my 2.5L turbo dodge engine.

[erikv11]

... The number you have is wrong. I know for a fact that 13G, 13T, 15G, and 16T share the same 56mm exducer while 19T uses a bigger 58mm. I had the 13G/13T/15G/16T center section machined for bigger 19T wheels. ...

Thanks again for the follow-up. For measurements and my interpretations I relied heavily on http://stealth316.com/2-turboguide.htm which the VS crowd has cited many times, but clearly the compressor wheel diameters from there are not relevant to the discussion. Once again, there is no substitute for real world experience, great to know you have it we might lean on you.

Thanks also for the comments about spool up. I am thinking that in the case of these turbos all being mounted on the same 2.3 engine, differences in the turbos would then be the main factors affecting spool up differences between them.

So OP, you have a many options if you want to replace the turbo, 13g may be the easiest way to go as they are pretty easy to come by in good condition.

[cvergi01]

I'm a little VS (I like my car to be fun when I want), and a little MVS (I love knowing how it all works). Personal opinion is a 16t and a tune. It's just as easy to replace, it keeps the car just as drivable, it's safer if you need to speed out of the way, and lane changes are more fun

[erikv11]

To be fair VS is usually dead on for a topic like engine mechanics and turbo specs. You can get some really great info there.

[tryingbe]

I'm a little VS (I like my car to be fun when I want), and a little MVS (I love knowing how it all works). Personal opinion is a 16t and a tune. It's just as easy to replace, it keeps the car just as drivable, it's safer if you need to speed out of the way, and lane changes are more fun

I had the 15G and 16T wheel side by side. They both have the same inducer and exducer. 16T have a taller wheel and the wheel's tips are also taller. I was so unimpressed and I sold all the 16T that came my way and keep my 15G to be used with the 190k engine. (16T can be sold for higher price)

I got a big Turbonetics half ball bearing turbo here, if I ever got around of finishing my new block/head/etc, it might finally be used one day.

[mecheng]

Some Great info in this thread, it should be stickeyed.

Question: which cars use the 13T turbo, it has great specs?

I always thought the 97 850 GLT which was the first LPT used the 13G, and its successors (S70 LPT) used to 13T??